What Oil To Put In Gear Box?

[r33 chris]

sorry all for making a new thread but my gear box has been making noises and i am unsure of what oil to get as i have never done it before, is their any stuff that would maybe get rid of some noise aswell?

sorry if there is a link to this info im just a bit stupid when it comes to finding stuff lol

[Dohmar]

sorry all for making a new thread but my gear box has been making noises and i am unsure of what oil to get as i have never done it before, is their any stuff that would maybe get rid of some noise aswell?

sorry if there is a link to this info im just a bit stupid when it comes to finding stuff lol

a good mineral oil... stay away from the redline shockproof crap, it kills synchros

-D

[r33 chris]

aw really i was about to go get some lol, ill just get what ever the recomend at the shops i guess lol, how much does a r33 gtst take anyone know?

[Madaz]

i put a >>Penrite SIN 75 in my box recommend from boostworx who also recommended Redline and Redline shockproof

from memory a RB25 box takes 4.3Lt

[r33 chris]

thanks steve, hey i gotta drop ur turbo elbow off soon mate been sitting here 4 a month now lol

[Madaz]

yeah npz

[ovrtym33]

a good mineral oil... stay away from the redline shockproof crap, it kills synchros

-D

and r33 gearboxes arn't cheap to rebuild, i just had mine done

[Madaz]

who rebuilt it Danai i wouldn't mind mine freshened up but not to the extent you paid just mainly synchros

[ovrtym33]

who rebuilt it Danai i wouldn't mind mine freshened up but not to the extent you paid just mainly synchros

im not sure of ther name Steve coz my workshop sent it off to the guy who build the "ralliart box's", ill try and find out for u

mine only went in to originally get all the synchros but ended up needing a whole lot more, depends on the condition it is when they open it up

mine needed:

synchro's 1,2,3,4

input shaft

3/4 synchro hub

synchro keys, springs and sleeves

i nput shaft bearing

input seal

3rd gear

[Madaz]

cheers a PM when you find out who did it will suffice

[r33 chris]

hey danai can you pm a around about figure on what it cost you as i only want 5th gear syncro done and probably thrust bearing but wanna know how much i could be poosible looking at , thanks

[Carbon 34]

a good mineral oil... stay away from the redline shockproof crap, it kills synchros

-D

Are you kidding???, Redline has saved a few of my gear boxes, second gear and third grinding.

In my RX7 race/street car turning 10,000 plus rpm on shifts, when I bought the car the tranny syncros crashed/gring on everyshift into second and third. with less then 40,000miles on it. after 11yrs of caining ,when i sold it it had 526,000miles not K's or over 1 million K's on it and never had any other issues with tranny except the seals on both ends replaced when putting in a clutch and new Ujoints. the car was thrashed daily hard core.the skyline would never handle that abuse , RX7 trannys are not that strong to start with but mine took 250-350hp all those years without breaking anything. including 11,000rpm clutch drops with huge tires on a night drag run. rear end ran Redline too, never failed once, only seals on end plates/axle.

my current car with 5spd, noisy tranny, bad synchro in second gear, put in syn power 75 from penrite, after replacing with factory slop.

it helped a bit but went with Redline , all fixed now.. ????? whines a bit when cold out but stops when warm. car had issues at 43,000k,, now has nearly 70,000. in the heat here dont use mineral oil, shit!! unless you have a six spd getrag... Redline is so slick it tends to cause issues on those boxes wont engage properly due to lack of friction.. per Redline,Holden, Nissan,Supra, Getrag engineers.

also royal purple is good, and amsoil, mobil 1 synth gear oil, gulf western I heard is decent too.

all synthetic, runs heaps cooler and smoother, less noises.

but watch it on rear ends, LSD needs proper oil to function.???

[Race__24]

but watch it on rear ends, LSD needs proper oil to function.???

You won't need special LSD oil for your standard GTS-T Viscous LSD diff, they work via a different principal to the clutch, cone and mechanical types. If you've got an aftermarket diff........ well I don't know. But rule of thumb, go for the best you can afford. Diff and gearbox oils don't get changed like engine oil so you want to make sure you've got something that'll go the distance.

[Dohmar]

Are you kidding???, Redline has saved a few of my gear boxes, second gear and third grinding.

In my RX7 race/street car turning 10,000 plus rpm on shifts, when I bought the car the tranny syncros crashed/gring on everyshift into second and third. with less then 40,000miles on it. after 11yrs of caining ,when i sold it it had 526,000miles not K's or over 1 million K's on it and never had any other issues with tranny except the seals on both ends replaced when putting in a clutch and new Ujoints. the car was thrashed daily hard core.the skyline would never handle that abuse , RX7 trannys are not that strong to start with but mine took 250-350hp all those years without breaking anything. including 11,000rpm clutch drops with huge tires on a night drag run. rear end ran Redline too, never failed once, only seals on end plates/axle.

my current car with 5spd, noisy tranny, bad synchro in second gear, put in syn power 75 from penrite, after replacing with factory slop.

it helped a bit but went with Redline , all fixed now.. ????? whines a bit when cold out but stops when warm. car had issues at 43,000k,, now has nearly 70,000. in the heat here dont use mineral oil, shit!! unless you have a six spd getrag... Redline is so slick it tends to cause issues on those boxes wont engage properly due to lack of friction.. per Redline,Holden, Nissan,Supra, Getrag engineers.

I've seen this argument many times. Redline themselves recommend that people dont use shockproof in a synchromesh gearbox because it will eventually shag the synchros. Its designed for dogboxes....

It can hide some symptoms of a failing gearbox but it doesnt fix any problems. Matter of fact, since you're shifting and it cushions the impact when the gears arent synchronized, its often mashing your synchros and you don't even feel it. In the short term, it'll make your box feel slightly better but you'll halve the lifetime due to using it. I have to replace my box for the exact reason that the redline shit was in it. When they drained the fluid (which looks like pureed smurf) there were heaps of tiny shards of metal in there from poor shifts. Just look to what the OEM manufacturers recommend (usually mineral oil).... I can guarantee you that no manufacturer out there is recommending their customers use redline shockproof.

-D

[Carbon 34]

You will never sell me to use Mineral Oil , I agree if your box is stuffed , ie broken or bent parts its a bandaid at best, kinda like sawdust in mineral oil to silence a noisy box before selling it..lol

but if your box is scratchy or noisy it can work miracles on life of the box.. see my post, Im not kidding how well it works.

and it does reduce temps too, my shifter doesnt get hot anymore like syn75 or factory oils.???

this is the oil to use in a R34/33 rb25 engine skyline. you dont need shockproof oil just normal stuff from redline.

http://www.redlineoil.com.au/oil-finder-de...;ProductID=5884

Select your closest climate range. For -10°to25°C use 'MTL' or 5°to35°C use 'MTL' or 15°to50°C use 'Superlight Shock'. (* Advantage option for Performance / Racing use 'Lightweight Shockproof'.) @ see handbook for Litres

I use water wetter from Redline too, a huge difference in its ability to keep the engine cool, on the hottest days,all my cars for the past 15- or so years have used it, works great!! going to use it to water cool my car amps too..lol

link for oil recommended for GTR's

http://www.redlineoil.com.au/oil-finder-de...;ProductID=7592

Edited March 8, 2009 by sapphiregraphics

[Dohmar]

I use water wetter from Redline too, a huge difference in its ability to keep the engine cool, on the hottest days,all my cars for the past 15- or so years have used it, works great!! going to use it to water cool my car amps too..lol

lol water wetter. I've heard it all now.... if you want better cooling, why not do what I did? Get an ISC 52mm radiator, new hoses, an N1 water pump, a 1.3kpa nismo radiator cap and an air deflector shroud... more than enough cooling for the average bear

-D

[Carbon 34]

lol water wetter. I've heard it all now.... if you want better cooling, why not do what I did? Get an ISC 52mm radiator, new hoses, an N1 water pump, a 1.3kpa nismo radiator cap and an air deflector shroud... more than enough cooling for the average bear

-D

why bother, my runs cool on 40 plus days with ac set to 18...lol

only thing I have added is water wetter, and nismo cap , deflector coming soon but just for looks,..lol

and only cost me just over 20 bucks bet you spent a tad more then that..lol

to each his own

[MissR34]

i have all Martini Racing Fluids in muh car

only thing that isnt Martini Racing is the fuel......lol...........and even then i can get that if i want haha

Martini Racing FTW

[r33 chris]

geez now im more confused lol heard red line is great then i got told it damages ur syncro's then i hear its amazing, now im just confused lol, im gunna have a look tomorrow thing half my problem is that the clutch is to slack and maybe my tail shaft. wanna hear more about this oil thing now tho coz now i have no idea.

Edited March 8, 2009 by r33 chris

[MissR34]

hahaha its hard to make a decision i know cause everyone has there own opinion on a different brand lol